Harden XML parsing via commons-secure-xml - #393
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Create XML stream readers, parsers, schema factories and transformers through org.apache.commons:commons-secure-xml. The secure factories enable FEATURE_SECURE_PROCESSING and install a non-removable entity-resolver floor on every parser they produce: external DTD, entity, schema and XInclude lookups that a caller-set resolver does not resolve are resolved to empty content instead of being fetched, and internal entity expansion is bounded, regardless of the JAXP implementation on the classpath. Changes: - Add the commons-secure-xml dependency (1.0.0-SNAPSHOT until its first release). - Route factory creation through SecureXMLInputFactory, SecureSchemaFactory and SecureDocumentBuilderFactory in SCXMLReader, and through SecureTransformerFactory in SCXMLWriter and ContentParser. A Configuration-supplied XMLResolver still takes precedence: the floor only handles lookups the resolver leaves unresolved, and the factoryId/factoryClassLoader override still selects the underlying implementation. - ContentParser.parseXml now wraps its argument in an InputSource: DocumentBuilder.parse(String) interprets its argument as a URI, so the method never actually parsed the XML content it was documented to parse. - Run the CI and CodeQL builds with -Puse-apache-snapshots (inherited from the org.apache:apache parent POM) so the commons-secure-xml SNAPSHOT resolves; CodeQL's autobuild receives the profile through MAVEN_ARGS. Assisted-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MHgnMnGWHQoH2zD2jFdoMT
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Apache Commons Secure XML
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Creates XML stream readers, parsers, schema factories and transformers through
org.apache.commons:commons-secure-xml(1.0.0-SNAPSHOT until its first release). The secure factories enable XML secure processing and install a non-removable entity-resolver floor: external DTD, entity, schema and XInclude lookups that a caller-set resolver does not resolve are resolved to empty content instead of being fetched, and internal entity expansion is bounded.SCXMLReadergoes throughSecureXMLInputFactory(theConfiguration-suppliedXMLResolverstill takes precedence, and thefactoryId/factoryClassLoaderoverride still selects the underlying implementation), plusSecureSchemaFactoryandSecureDocumentBuilderFactory;SCXMLWriterandContentParsergo throughSecureTransformerFactory.ContentParser.parseXmlnow wraps its argument in anInputSource:DocumentBuilder.parse(String)interprets its argument as a URI, so the method never actually parsed the XML content it was documented to parse.-Puse-apache-snapshotsso the SNAPSHOT dependency resolves.🤖 Generated with Claude Code